LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2013 >> Regal GS, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1811 >> Circuit/System Description

Circuit/System Description

The powertrain high speed GMLAN serial data circuits are serial data buses used to communicate information between the devices.

This diagnostic is used to check the powertrain high speed GMLAN communication bus status.